Gibson (hamstring) suffered a hamstring injury at practice Tuesday, putting his status for Saturday's game against SMU in question, Jacquie Franciulli of 247Sports.com reports.
Colandrea was 8-for-21 passing for 69 yards and three interceptions during Saturday's 35-14 defeat to Notre Dame. He also had four rushes for 23 yards.
Muskett completed 9 of 14 passes for 103 yards during Saturday's 35-14 loss against Notre Dame. He also had five rushes for nine yards with two touchdowns.